The solution is obvious: NI should remain in the customs union with the EU, rest of the UK leaves it, and to avoid the appearance of a "break-up of the UK", the integration of NI with the rest of the UK in other areas (e.g reproduction rights) is accelerated. NI-EU customs union could be subject to a confirmatory referendum in NI, which I would expect would pass with flying colours. Win-win.
The only problem is that after 2016, this solution was framed as "anti-unionist", and it would take some real political effort to change this perception now.
Don't know.This is a tech solution and it's not about tech.
The moderate majority on both sides just want to get on with their lives.
The old ideologies will change. Doesn't put food on the table. I see that workers of (East Belfast) Harland and Wolfe staged a picket with Alliance, SDLP and Sinn Fein against closure while DUP was entertaining Boris for dinner.
The majority of NI wants to stay in EU.